#dilute orange

[meowtime]

What’s better than a cat in your lap? An ORANGE cat in your lap. Getting some fuzzy love with Simeon.

#meow time #pet sitting #cat #cute #animal #fuzzy #furry #purr #cats of tumblr #orange kitties rock #ginger #marmalade #apricot #dilute orange #buff #lap cat

[hauntedhousecat]

Here, let me boop YOUR nose!

#Irene #Irene the cat #Sherlock Cats #Catblr #Cats of Tumblr #Petblr #Ginger tabby #Ginger tabbies #Ginger cats #Orange cats #Orange tabby #Dilute ginger #Dilute orange #Cats #Cat #Pets #Animals #Haunted house cat #HauntedHouseCat

[amber-tortoiseshell]

Hello! I used to volunteer at a shelter and this pretty gal was named toffee - I’d never seen a cat who was more orange than black! Any ideas about genetics or what would make a cat have extra orange?

Hello! As far as i know, the color distribution of a tortie is random, and while it's a rare sight, a cat with this much more orange than black is a completely normal tortie variant. It's just the luck of the X-inactivation.

#ask and answer #orange #black tortoiseshell #I have some warrior headcanons like this (red-heavy tortie) #Sparkpelt for example #Sandstorm but dilute

[lemnnshark]

"Dusk Nose is a black-and-orange tortoiseshell she-cat."

#warrior cats #dusk nose #dusk nose wc #warrior cats designs #shadowclan #the one time i wanted to make a dilute tortie they specified black and orange </3

[cookies-in-chees]

Artistic rendition of what i was talking about, uhhhhhhh mother base clan is fucked

#you can tell I don’t draw a lot of cats #mgs #metal gear solid #warrior cats #venom snake #kazuhira miller #huey emmerich #shitpost #kitties #Vkaz #also bc I’m silly #venom is a tabby cat #Kaz is a light orange cat #and Huey is a diluted calico

[faye-petuxia]

Merry Christmas from the family :)

#orange cat #orange cats #pet costume #pets #australian shepherd #cats in hats #cute cats #cats of tumblr #tortie #dilute tortie #fluffy cat #fluffy dog #fluffy pets #christmas pets #holiday pets #festive pets #christmas #merry christmas

[skitskatdacat63]

Seasonal depression magically swept away by getting to sit in the dark and watch the snow fall while eating snow :)

#i always eat orange juice and snow anytime it snows 😭 #tho tonight i was questioning red bull #but i didnt really wanna dilute it ig

[spilltojill-pets-dogs-cats]

#IFTTT #Flickr #otis #dilute #orange #ginger #tabby #male #cat #creamsicle #masked #whiskas #catheadbed #catbed #sunny #window #sunroom #neko #macska #kedi #猫 #kočka #kissa #γάτα #köttur #kucing #gatto #고양이 #kaķis #katė

[tsubasaclones]

apparently when my dad called me recently he had me on speakerphone and one of my cats got up to look for me when he heard my voice

#well. his heart is in the right place! #and yes hes orange. well technically dilute orange/cream but he is orange

[1nvad3rz1m]

me crying, trying to remember punnet squares

#irken biology tag #so yall can silence me #but im basing it off of sex chromosomes bc thats how fruit flies work kind of #basically its a much simpler eye system without means of mixing colors like human genes #the reason orange doesnt exist in my crazy non scientific reasoning is that yellow cant exist without green #and there is no allele for yellow it only results from red and green #dilution can occur in any of these though like pink #no they dont have mothers and fathers but whatever genes get smashed together is what they get #also irkens are all hermaphrodites so they get both chromosomes

[meowtime]

Tommy is a senior senior kitty, but just look at that face. So much light in those eyes.

#meow time #pet sitting #cat #cute #animal #fuzzy #furry #purr #cats of tumblr #orange kitties rock #buff #ginger #marmalade #dilute orange #floofy #long hair #senior cat #handsome guy

[hauntedhousecat]

Miss Irene the Beauty Queen

She requests a sacrificial treat....or a toss of a toy mouse across the room.

Which to choose....🤔

#Irene the cat #Irene the beauty queen #Sherlock Cats #HauntedHouseCat #Cats #Pets #Animals #cute animals #Ginger cats #Orange cats #Orange tabby #Ginger tabby #Dilute ginger cats #Catblr #Petblr #Cats of Tumblr #Pets of Tumblr #Best meow #Cute cats #Pretty cats #Sweet cats #She's such a cute little girl

[amber-tortoiseshell]

Featured breed: none

genetics guide

Orange (?): this yet unidentified gene determines the type of the most prominent pigment: eumelanin or pheomelanin.

allele: O - mainly pheomelanin, red-based cat (variant)

allele: o - mainly eumelanin, black-based cat (wild type)

further information in this post

Dilute (melanophilin, MLPH): this gene determines the distribution of the pigments.

dominant allele: D - even pigment distribution, dark cat (wild type)

recessive allele: d - clumped, uneven pigment distribution, diluted cat (variant)

black -> blue

chocolate -> lilac

cinnamon -> fawn

orange -> cream

further description in this post

Bonus: Tortoiseshell patterns

Have you ever noticed that tortoiseshells with no white are much more brindled than tortoiseshell with lots of white?

The first cat has very small, intertwined black and red patches, while the second has well defined, big patches. What could cause this phenomenon?

I have to start the answer from far away. First, let's talk about the melanocytes.

Melanocytes are the cells in the skin that produce pigments. As you can see on this illustration, one melanocyte effects lots of skin cells.

In tortoiseshells, each cell has an X chromosome with the black and one with the red allele, and - because of biological reasons i won't get into here -, they all "turn off" one of their X chromosomes, choosing between them randomly. (This is called X-inactivation.) The melanocytes produce pigments according to their active X chromosome's orange allele. The differently colored patches on the tortoiseshell pelt is the area a single melanocyte, or more precisely, its clones reach.

But why is it different based on the level of the white spotting?

Well, do you remember what the white spotting gene does?

White spotting (receptor tyrosine kinase, KIT): this gene determines the size of the area the pigment producing cells (the melanocytes) reach.

How does this works? During the development of the embryo, at a specific point the ws allele stops the creation of new melanocytes. This means as the embryo grows, the melanocyte coverage breaks up and the uncovered, new body parts become white.

In a full-colored cat, new melanocytes with their newly and randomly inactivated X-chromosomes are created for much longer, so they'll be present in much bigger numbers, therefore every cell will have much less space to further divide. This is why no-white or little white tortoiseshells have small patches.

If the melanocyte creation stops earlier, the single melanocytes have lots of space to divide, and they'll form big clone colonies. You can see them on calicos: at a very early point of the cat's life, every red and black patch was one single melanocyte!

#polls #cats #cat genetics #macska #genetics #tournament poll #round 3 #orange #dilute #cat color gene tournament

[youngestdaughtersyndrome]

mixed orange juice with sparkling water .... have uou heard of this !!!!

#its sooo good it fr just tastes like sparkling orange juice its not diluted at all somehow... ong #hollyws

[awordbroken]

too lazy to rearrange my cats-named-after masters next to each other, but the collection so far.

#ill be honest 'mr cups' is just because i didn't want to make any of the masters i care about Yet Another Orange Cat #begging and pleading with nestor for some dilute cats asdsdhgdfhgj #this screenshot contains literally all 2 of my dilutes in fact (crow melusine (smoke) + carver (cream))

[lacymoonchild]

#maine coon #cat #cats #caturday #maine coons #grey #dilute calico #orange #love #card #cards #flowers #flower #summer